Mercurial > hg > graal-jvmci-8
comparison src/share/vm/gc_implementation/g1/concurrentMark.hpp @ 20293:7df07d855c8e
8048085: Aborting marking just before remark results in useless additional clearing of the next mark bitmap
Summary: Skip clearing the next bitmap if we just recently aborted since the full GC already clears this bitmap.
Reviewed-by: brutisso
| author | tschatzl |
|---|---|
| date | Mon, 21 Jul 2014 09:59:46 +0200 |
| parents | 2c6ef90f030a |
| children | 6701abbc4441 |
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| 20292:5d7a63aee595 | 20293:7df07d855c8e |
|---|---|
| 734 VerifyOption vo, bool all) PRODUCT_RETURN; | 734 VerifyOption vo, bool all) PRODUCT_RETURN; |
| 735 | 735 |
| 736 // Clear the next marking bitmap (will be called concurrently). | 736 // Clear the next marking bitmap (will be called concurrently). |
| 737 void clearNextBitmap(); | 737 void clearNextBitmap(); |
| 738 | 738 |
| 739 // Return whether the next mark bitmap has no marks set. | |
| 740 bool nextMarkBitmapIsClear(); | |
| 741 | |
| 739 // These two do the work that needs to be done before and after the | 742 // These two do the work that needs to be done before and after the |
| 740 // initial root checkpoint. Since this checkpoint can be done at two | 743 // initial root checkpoint. Since this checkpoint can be done at two |
| 741 // different points (i.e. an explicit pause or piggy-backed on a | 744 // different points (i.e. an explicit pause or piggy-backed on a |
| 742 // young collection), then it's nice to be able to easily share the | 745 // young collection), then it's nice to be able to easily share the |
| 743 // pre/post code. It might be the case that we can put everything in | 746 // pre/post code. It might be the case that we can put everything in |